package com.xiaochen.manager.test;

public class test2 {

    public static void main(String[] args) {
        test_a(20);
        test_b("aa");
    }

    public static void test_a(int a){
            if (a>10){
                a--;
                System.out.println(a);
                test_a(a);
            }
    }
    public static void test_b(String a){
        System.out.println(a == "");
    }
}
